科技科学

Defect passivation and optical management of triple-junction solar cells

Nature作者：Ye Xu2026年8月17日正文已收录本站
  • Article
  • Published:
  • Zhijie Wang2 na1,
  • Chen Deng  ORCID: orcid.org/0009-0001-1754-857X1 na1,
  • Lianlian Qi1 na1,
  • Yi Mo1,2 na1,
  • Qianqian Wang2,
  • Danni Yu1,
  • Yao Wang1,11,
  • Yifan Chen2,
  • Yiqin Tian3,
  • Pengcheng Zhao3,
  • Ming Luo2,
  • Dongrui Jiang  ORCID: orcid.org/0009-0001-1283-09472,
  • Haiyun Li2,
  • Xiaobing Ding1,
  • Rui Xia1,
  • Dongdong Yan1,
  • Pengcheng Ge1,
  • Delei Xin1,
  • Huifeng Yao  ORCID: orcid.org/0000-0003-2814-48503,
  • Shangqian Zhu  ORCID: orcid.org/0000-0002-5813-95883,
  • Kaihu Xian4,
  • Chengyue Zhou10,
  • Guangtao Yang1,
  • Li Yin1,
  • Yingguo Yang  ORCID: orcid.org/0000-0002-1749-27995,
  • Anurag Krishna  ORCID: orcid.org/0000-0001-7255-74126,7,8,
  • Wallace C. H. Choy  ORCID: orcid.org/0000-0002-9535-40769,
  • Pietro P. Altermatt1,
  • Jianlu Wang  ORCID: orcid.org/0009-0008-3976-483X2,
  • Zhigang Xie  ORCID: orcid.org/0009-0009-8354-73701,
  • Xueling Zhang  ORCID: orcid.org/0009-0004-4184-803X1,
  • Junhao Chu2,
  • Hong Zhang  ORCID: orcid.org/0000-0002-5321-06802,
  • Jifan Gao  ORCID: orcid.org/0009-0002-6819-166X1,2 &
  • …
  • Yifeng Chen  ORCID: orcid.org/0000-0001-8601-09791 

Nature (2026) Cite this article

We are providing an unedited version of this manuscript to give early access to its findings. Before final publication, the manuscript will undergo further editing. Please note there may be errors present which affect the content, and all legal disclaimers apply.

Abstract

Perovskite/perovskite/silicon-based triple-junction solar cells are a promising low-cost route to surpass the Shockley–Queisser efficiency limit of single-junction photovoltaics, but their performance is constrained by non-radiative losses in wide-bandgap perovskites and sub-optimal light management across the multilayer stack1-3. Here, we introduce a passivating molecule, 4F-POEABr, which strongly suppresses surface-defect-mediated recombination of WBG perovskite films. The ammonium attached and electron-deficient structure of 4F-POEABr provides combined chemical and field-effect passivation, enabling a quasi-Fermi-level splitting of 1.53 eV and an open-circuit voltage of 1.413 V in the WBG sub-cell. In parallel, systematic interference management is used to optimize the current density of the current-limited middle sub-cell, yielding a gain of 0.5 mA cm⁻2 via a tailored tin oxide/indium zinc oxide bilayer structure. As a result, the triple-junction devices achieve certified steady-state power conversion efficiencies of 32.22% for a 1.046 cm2 aperture area and 26.97% for a 15.62 cm2 aperture area, with negligible hysteresis. Robust interconnection layers and engineered perovskite interfaces further enhance operational stability and reduce device-to-device variation. This work demonstrates a synergistic strategy for pushing perovskite/silicon triple-junction solar cells toward their theoretical efficiency limits, enabling scalable, high-performance photovoltaic technologies.

This is a preview of subscription content, access via your institution

Access options

Access through your institution

Access Nature and 54 other Nature Portfolio journals

Get Nature+, our best-value online-access subscription

27,99 € / 30 days

cancel any time

Subscription info for Chinese customers

We have a dedicated website for our Chinese customers. Please go to naturechina.com to subscribe to this journal.

Rent or buy this article

Prices vary by article type

from$1.95

to$39.95

Prices may be subject to local taxes which are calculated during checkout

Subjects

Author information

Author notes

  1. These authors contributed equally: Ye Xu, Zhijie Wang, Chen Deng, Lianlian Qi, Yi Mo

Authors and Affiliations

  1. State Key Laboratory of Photovoltaic Science and Technology, Trina Solar, Changzhou, P. R. China

    Ye Xu, Chen Deng, Lianlian Qi, Yi Mo, Danni Yu, Yao Wang, Xiaobing Ding, Rui Xia, Dongdong Yan, Pengcheng Ge, Delei Xin, Guangtao Yang, Li Yin, Pietro P. Altermatt, Zhigang Xie, Xueling Zhang, Jifan Gao & Yifeng Chen

  2. State Key Laboratory of Photovoltaic Science and Technology, Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and Perception, Institute of Optoelectronics, College of Future Information Technology, College of Smart Materials and Future Energy, Fudan University, Shanghai, P. R. China

    Zhijie Wang, Yi Mo, Qianqian Wang, Yifan Chen, Ming Luo, Dongrui Jiang, Haiyun Li, Jianlu Wang, Junhao Chu, Hong Zhang & Jifan Gao

  3. School of Chemistry and Chemical Engineering, Southeast University, Nanjing, China

    Ye Xu, Yiqin Tian, Pengcheng Zhao, Huifeng Yao & Shangqian Zhu

  4. State Key Laboratory of Natural Product Chemistry, Key Laboratory of Special Function Materials and Structure Design (MOE), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, P. R. China

    Kaihu Xian

  5. School of Microelectronics, Fudan University, Shanghai, P. R. China

    Yingguo Yang

  6. Imec, imo-imomec, Thin Film PV Technology, Genk, Belgium

    Anurag Krishna

  7. Hasselt University, imo-imomec, Hasselt, Belgium

    Anurag Krishna

  8. EnergyVille, imo-imomec, Genk, Belgium

    Anurag Krishna

  9. Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, P. R. China

    Wallace C. H. Choy

  10. Shanghai Jinzhu Technology Co., Ltd., Shanghai, P. R. China

    Chengyue Zhou

  11. School of Photovoltaic and Renewable Energy Engineering, UNSW, Sydney, NSW, Australia

    Yao Wang

Authors

  1. Ye Xu
  2. Zhijie Wang
  3. Chen Deng
  4. Lianlian Qi
  5. Yi Mo
  6. Qianqian Wang
  7. Danni Yu
  8. Yao Wang
  9. Yifan Chen
  10. Yiqin Tian
  11. Pengcheng Zhao
  12. Ming Luo
  13. Dongrui Jiang
  14. Haiyun Li
  15. Xiaobing Ding
  16. Rui Xia
  17. Dongdong Yan
  18. Pengcheng Ge
  19. Delei Xin
  20. Huifeng Yao
  21. Shangqian Zhu
  22. Kaihu Xian
  23. Chengyue Zhou
  24. Guangtao Yang
  25. Li Yin
  26. Yingguo Yang
  27. Anurag Krishna
  28. Wallace C. H. Choy
  29. Pietro P. Altermatt
  30. Jianlu Wang
  31. Zhigang Xie
  32. Xueling Zhang
  33. Junhao Chu
  34. Hong Zhang
  35. Jifan Gao
  36. Yifeng Chen

Corresponding authors

Correspondence to Huifeng Yao, Zhigang Xie, Xueling Zhang, Hong Zhang, Jifan Gao or Yifeng Chen.

Supplementary information

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Xu, Y., Wang, Z., Deng, C. et al. Defect passivation and optical management of triple-junction solar cells. Nature (2026). https://doi.org/10.1038/s41586-026-11010-8

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1038/s41586-026-11010-8